A process contains eight virtual pages on disk and is assigned a fixed allocatio

Question

A process contains eight virtual pages on disk and is assigned a fixed allocation of four page frames in main memory. The following page references occur:
1, 0, 2, 2, 1, 7, 6, 7, 0, 1, 2, 0, 3, 0, 4, 5, 1, 5, 2, 4, 5, 6, 7, 6, 7, 2, 4, 2, 7, 3, 3, 2, 3
a. Show the successive pages residing in the four frames using the LRU replacement policy. Compute the hit ratio in main memory. Assume that the frames are initially empty.
b. Repeat part (a) for the same page reference scheme using the FIFO replacement policy.
c. Repeate part (a) for the same page references scheme using optimal page replacement.

Explanation / Answer

how many values can be held by an array A(-1,m;1,m) ?

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